You new sales job offers you a choice of salary plans: a) 6% of all your sales; or b) a monthly salary of $1500 and 4% of all your sales. How much do you have to sell in order for the first plan to be equal to the second plan? Show how you would use one or more linear equations(s) to decide
case 1 : Pay = .06s, where s is the total sales
case 2: Pay = 1500 + .04s
so you want to solve:
.06s = 1500 + .04s
go for it.